Document Type

Article

Publication Date

6-23-2022

Publication Title

Journal of Vacuum Science & Technology A

Volume

40

Issue

4

Pages

1-6

Publisher Name

American Vacuum Society

Abstract

Heterogeneously catalyzed reactions over transition metal surfaces are pillars of chemical industry and account for a significant fraction of the global energy demand. CO oxidation provides insight into the relative reactivity of various oxygenaceous surface phases, and it is necessary to first understand where it binds to the surface and the nature of the local environment to develop robust mechanistic pictures of the reaction. Surface IR spectroscopy is a quantitative technique that also provides information about the binding sites and chemical environments of the adsorbed CO molecules. Here, we report results from a study of CO sticking to clean Rh(111) and (2 × 1)-O/Rh(111) that shows that the intensity of the IR absorption was not linear with coverage and is an important consideration for further studies of the catalytic surface.

Comments

Author Posting © The Authors, 2022. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the Journal of Vacuum Science and Technology A, Volume 40, Issue 4, Pages 1-6, and may be found at https://doi.org/10.1116/6.0001932.

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